Neptune Apex classic aqua controller system Includes: Classic Apex Base Unit Controller, Apex Display Module, Long-life Temperature Probe, Energy Bar 8, Lab Grade pH Probe As in this one: https://www.bulkreefsupply.com/apex-controller-with-lab-probe-neptune-systems.html Also includes: Lab grade ORP probe, as in this one: https://www.bulkreefsupply.com/neptune-systems-lab-grade-orp-probe.html SALINITY MODULE: PM2, as in this one: https://www.bulkreefsupply.com/salinity-module-pm2-neptune-systems.html LAB GRADE CONDUCTIVITY/SALINITY PROBE as in this one: https://www.bulkreefsupply.com/neptune-systems-lab-grade-conductivity-probe.html Expected price: $450. Cost of items if bought new today will be close to $900. All units working perfectly in my tank currently. I am hesitant to ship. Prefer to sell locally. I am located at Richmond, VA.